/Engine/Plugins/Editor/SequencerAnimTools/Source/SequencerAnimTools/Public/TrailHierarchy.h
virtual void AddTrail ( const [FGuid](API\Runtime\Core\Misc\FGuid) & Key, [TUniquePtr](API\Runtime\Core\Templates\TUniquePtr)< [FTrail](API\Plugins\SequencerAnimTools\FTrail) > && TrailPtr )